Aeroplane



H. A. ROBINSON.

AEROPLANE.

APPLICAHQN FILED AUG,23A I918.

1,845,885,, Patented July 6, 1920,

INVENTOR fizzy 1/]. Robinson ATTORNEY UNITED STATES PATENT OFFICE.

HUGH A. ROBINSON, OF KEYPORT, NEW JERSEY, ASSIGNOR TO AEROMARINE PLANE&, MOTOR (30., INC., A CORPORATION OF NEW YORK.

AEROPLANE Application filed August 23, 1918.

To all whom it may concern.-

Be it known that I, HUGH A. RomNsoN, a citizen of the United States,residing at Keyport, in the county of Monmouth and State of New Jersey,have invented certain new and useful Improvements in Aeroplanes, ofwhich the following is a specif :ation, reference being had therein tothe accompanying drawing.

My invention relates to improvements in aeroplanes and more particularlyhas reference to a metal tail post, rudder lock and saddle stay.

Referring to the accompanying drawings, I have illustrated in Figure linperspective parts being broken away, a suitable form of tail postembodying an application of my invention. F ig. 2 is a view looking fromleft to right at Figil. Fig. 3 illustrates a detail of one of theconnecting parts and Fig. 4 is a cross-section on the line el-4 of Fig.

5, (i, 7 and 8 indicate the longerons which it will be observed aresocketed in the upper and lower portions of the tail post 10 and areheld in position by suitable bolts such as 5). 11 indicates other boltsupon which the fittings 12 shown in Fig. 3 may be secured for anchoringthe turnbuckies such as 13. The tail post may be cut away in variousplaces as indicated by the reference character 14 for lightness ifdesired and to allowfor the esca )e of air and ma also be )rovided withholes such as 10 for securing the covering of cloth or other material.16 indicates the rudder lock or support for the rudder which ispreferably secured to the back of the tail post as shown in Fig". 2 andmay be held by a nut such as l6 if desired, a lug, or proectron such asit being adapted to engage a hole such as 1% 1n the back oi the tailpost to prevent the same from turning.

Specification of Letters Patent.

Patented July 6, 1920.

Serial No. 251,071.

struction and arrangement of parts without departing from the spirit ofthe lnvention as claimed.

I claim 1. In a device of the class described, a three sided metallicstructure having upper and lower sockets within which may be secured thelongerons of an aeroplane and rudder locks at the back thereof withinwhich may be supported a rudder.

2. In a device of the class described, a

three sided metallic structure having upper and lower sockets withinwhich may be secured the longerons of an aeroplane and rudder looks atthe back thereof within which may be supported a rudder and incombination therewith means for securing guy wires within saiddevice.

3. In a device of the class described, a three sided metallic structurehaving upper and lower sockets within which may be secured the longeronsof an aeroplane and rudder locks at the back thereof within which may besupported a rudder, the sides of said device tapering outwardly in thedirection of the open side.

In testimony whereof I hereunto aliix my signature in the presence oftwo witnesses.

HUGH A. ROBINSON.

Witnesses IlU'il) H. DoUoLAss, THOMAS A. Hum.

